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Track Chain

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STONE: Leading Track Chain Manufacturer in China

STONE(Shanghai) Engineering Machinery Co.,Ltd is a maintenance base for construction machinery parts, specializing in providing maintenance services and parts for mining enterprise equipment. Our team was established in 2004 and is headquartered in Shanghai, China. It has a registered capital of 15 million yuan and has a completely independent brand STONE. We specialize in the production and supply of spare parts for Bulldozers, Excavators, and Wheel Loaders. Our detailed catalog offers a complete selection of OEM parts including Track Chain, Track Rollers, Sprocket, Excavator Buckets, Blades, Excavator Cylinders, Swing Circles and more. Also offers a wide range of electrical and hydraulic parts.

Exquisite production technology
Processed with high-quality raw materials the wear resistance is higher. Automated production perfectly guarantees product quality.

Powerful warehousing and logistics

It has a large warehouse of 3,000 square meters to ensure the delivery time of accessories. Customizable delivery services to speed up logistics delivery.

Professional business capabilities

A complete data system ensures product accuracy. The professional maintenance team will respond online within 24 hours and solve construction site problems within 48 hours.

Service capabilities

The industry knowledge and professional capabilities of the STONE team are the first priority in serving customers!

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Introduction of Track Chain

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Track chains for excavators are an essential component for the effective movement of the machine. Excavators are heavy machinery used for digging, excavation, demolition, and other construction activities. The track chain is an integral part of the undercarriage system that supports the weight of the excavator and provides stability. It also helps in distributing the weight of the excavator evenly, giving the operator maximum control and power.
The track chain is made up of several interlinked steel bars, which are designed to pivot and interlock with each other, creating a continuous loop. Each link in the chain is connected by a pin, which fits into holes in the adjacent links. The links are lined with a track shoe, which creates a smooth surface for the excavator to move on. The track shoe also helps to reduce wear and tear on the chain, extending its life. The track chain is driven by the sprocket, which is attached to the drive motor.
The track chain is an important part of the excavator's undercarriage system. It plays a significant role in maintaining the stability and balance of the machine while it is in use. The chain provides support and stability to the whole excavator, allowing it to move over uneven terrain without losing balance. The track chain also helps to distribute the weight of the excavator evenly, reducing the risk of damage to the machine.
The composition of the track chain is designed to withstand the wear and tear of intense excavation and construction work. The links and pins are made of high-quality steel, which is durable and resists deformation due to impact or pressure. The track shoe is also designed to resist wear and tear, which increases the lifespan of the chain.
The track chain is a crucial component of the excavator, and regular maintenance is necessary to ensure that it remains in good condition. The track chain must be regularly inspected for signs of damage, such as cracks, worn links, or missing pins. It is also important to keep the track chain free from debris or mud, which can cause excessive wear and damage the chain. Proper maintenance of the track chain can extend its lifespan and ensure the smooth operation of the excavator.
In conclusion, the track chain is a critical component of the excavator, providing stability, balance, and support for the machine. It helps to distribute the weight of the excavator evenly, reducing the risk of damage to the machine, and allowing it to move over uneven terrain smoothly. The track chain is designed to withstand the wear and tear of intense excavation and construction work, and proper maintenance is necessary to extend its lifespan. With consistent care and proper usage, an excavator's track chain can provide years of dependable service.

 

 

Function of the Track Chain

 
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Weight Distribution: The track chain evenly distributes the weight of the machine across a larger surface area. This prevents excessive stress on individual components, such as the track shoes and sprocket, ensuring longer life and improved performance.

02/

Traction: The interlocked design of the track chain ensures that each link engages with the sprocket teeth, providing the necessary traction to propel the machine forward or backward. The track chain's grip on the terrain helps in overcoming resistance and climbing steep gradients.

03/

Support and Stability: The track chain, combined with other undercarriage components like the track rollers and idlers, provides support and stability to the machine. It helps in maintaining balance while operating on uneven surfaces, preventing unnecessary vibrations and ensuring operator comfort.

04/

Shock Absorption: The track chain acts as a shock absorber, dampening the impact of rough terrains and reducing vibrations transmitted to the chassis and operator cabin. This feature significantly improves machine stability and extends the life of other undercarriage components.

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Flexibility: The track chain's flexibility allows it to adapt to the contours of the terrain, enhancing the machine's maneuverability. It enables smooth navigation over obstacles, such as rocks, stumps, and uneven surfaces, increasing overall productivity and efficiency.

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Wear Resistance: The track chain is subjected to constant friction, which can lead to wear and tear. Manufacturers often incorporate specialized heat treatment and hardening techniques to increase the track chain's wear resistance, ensuring longer service life.

 

Types of Track Chains

 

Lubricated chains

Lubricated chains are track chains that have lubricants permanently sealed into the space between the pin and the bushing. These seals are built to provide lasting lubrication and reduce the amount of wear that occurs due to friction on the pins and bushings. Unlike with dry chains, lubrication is automatic. However, lubricated chains usually cost more than dry chains in the short term.

dry chains

On the other hand, dry chains can be manufactured with grease between the pin and bushings, but the seals on these chains are generally less durable and may leak relatively quickly. Some dry chains may come sealed, but they may not be lubricated. With most dry chains, you will have to routinely lubricate your pins and bushings in order to avoid wear, as lubrication is not automatic. While dry chains are less expensive than lubricated chains, they will experience a significant amount of wear without sealed lubrication and will likely cost you a good deal of money in replacement parts over time.

 

Track Link Assy Excavator for Hitachi

 

How To Maintain Excavator Track Chain 

For excavator track chain, daily maintenance does not need to be too stressful, but there is still a certain demand for lubricants. For track chain, it is easier to lubricate the rollers and sprockets, but it is more difficult to lubricate the sprockets and bushings. Therefore, it is required that the lubricating oil must ensure good permeability, otherwise it will not have a good lubricating effect on the shaft and the shaft sleeve. Have excellent adhesion.

When the chain is running, the lubricating oil will be thrown off due to the action of high speed, and the lubricating oil will drip due to the action of gravity at low speed; therefore, the excavator accessories manufacturers will require that the lubricant used has good adhesion, And to be able to firmly adhere to the surface.

 

What Is The Use Of Track Chain

 

 

Track chains have been an important component in heavy machinery and construction equipment for years. They play a vital role in the overall performance and efficiency of the machinery, making them indispensable. The track chain is relied upon to ensure smooth operation, optimal traction, and reduced bouncing or vibration.

The primary use of a track chain is to provide a continuous looped chain that wraps around the sprocket and the idler, thus enabling heavy machinery to move forward or backward. These chains are made up of individual links that are interlocked to configure the overall chain. The links are designed to withstand high tension and severe conditions, making them durable enough to last a long time.

One of the benefits of track chains is that they help distribute the heavy loads of the machinery evenly, preventing damage to the undercarriage and other components. The chains' movement is controlled through the sprockets and the idlers that guide and stabilize the chains, leading to efficient and effective performance. Proper maintenance of the chains is paramount to ensure their longevity and maintain the overall performance of the equipment.

Another critical benefit of track chains is that they facilitate the machinery's movement on various terrains, including rough ones like rocky, slippery or muddy surfaces. They offer a better grip and reduce slipping, enabling machinery to achieve a better result and optimizing its working conditions. Additionally, they can also aid maneuverability, making it possible for heavy machinery to operate in narrow spaces.

Track chains can reduce shock, vibration, and noise, ensuring that the machinery operates smoothly and comfortably for the operator. The smooth operation helps reduce operator fatigue, thereby increasing productivity and reducing downtime. Due to their essential role in the machinery industry, various types of track chains are available to suit different equipment, including excavators, bulldozers, and other heavy construction machinery.

In conclusion, track chains play an indispensable role in heavy machinery and construction equipment, serving as a vital component that helps facilitate the machinery's movement, providing a better grip and stability while reducing vibration and noise. It is essential to ensure that the track chains are properly maintained to guarantee optimal performance, longevity, and efficiency of the overall machinery. With the availability of a wide range of track chains suited for different machinery, it is essential to select the right one to ensure optimal performance. Overall, the use of track chains boosts the productivity and reliability of heavy machinery, making them an invaluable tool in the construction and industrial sector.

 

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Common Problems of Track Chain

 

Q: What is the function of track chain in undercarriage?

A: Track chains and groups function to allow crawler-type heavy machinery to move efficiently. These track chains and groups are made up of flexible links that are connected together by fittings called pins and bushings. There are two types of track chains that exist for heavy machinery: dry chains and lubricated chains.

Q: What are excavator chains?

A: Track chains and groups function to allow crawler-type heavy machinery to move efficiently. These track chains and groups are made up of flexible links that are connected together by fittings called pins and bushings. There are two types of track chains that exist for heavy machinery: dry chains and lubricated chains.

Q: What is the difference between track chain and track link?

A: Sealed and lubricated track chains are specifically designed for an increased pin and bushing retention. The track link incorporates a greater pin-to-link and bushing-to-link contact areas where additional link wear material increases the component life.

Q: What two mechanisms connect each track chain?

A: Each chain consists of two rows of inter- locked links that are connected by pins and bushings. The bushings contact the sprocket, which propels the crawler over the track chain. The links themselves provide the mounting surface for the track shoes that actually make contact with the ground.

Q: How tight should a track chain be?

A: It is hard to demonstrate the amount of slack/tension required with however the chain should be as loose as possible without you being able to roll (by hand) the chain off the chain ring.

Q: What is the use of track chain?

A: The role of track chains and groups is to allow tracked heavy machinery to move efficiently. These track chains and groups consist of flexible links that are joined together by fittings called pins and bushings. There are two types of track chains for heavy machinery: dry chains and lubricated chains.

Q: What is a track chain assembly?

A: Track chains, also called track link assembly, is part of the undercarriage for crawler heavy equipment including excavators, bulldozers, cranes, and drilling machines.

Q: What are the parts of a track chain?

A: Track chains consist of chain link segments, which are connected to each other by bushes and pins. The drive sprockets drive the track chains, which in turn advance the machine in the desired direction of travel.

Q: What is the pitch of a track link?

A: The pitch is the distance between two rivet centers, so make sure you measure from center to center (or left edge to left edge). A good measurement can be taken by dividing the distance between 3 links by 2.

Q: What happens if chain is too loose?

A: A too loose chain will add noise and wear. In the worst case it may pop of the rear sprocket and jam the wheel from turning, or jam up around the front sprocket and cause the engine cases to crack, ruining the engine.

Q: What kind of instruments are required to do the inspections on the track chain?

A: It depends on the type of inspection that is required, some, as already mentioned, require a prior visual inspection. In addition, prior to carrying out any type of inspection, cleaning is necessary to remove the side or sand from the chain.
On the other hand, for each type of inspection a different instrument is required, below are the instruments used in the most common measurements:
Measure the wear at the height of the links you need a ruler, a vernier caliper or a depth gauge
To measure the wear of the bushing, a vernier caliper is used taking measurements of the external diameters in different positions measuring two diameters, D1 and D2, to record the difference between the values and corroborate the wear.
Measurement of distance between the links of the chain, measuring gauges are used to measure the distance between the interior and exterior of the element, two points are measured and averaged.
Measurement of the width of the sprocket, a record of the tooth width is taken on the sprocket and an average is obtained.
Measure the profile of the teeth of the wheel, to do it you need a previous deep cleaning, you must use gauges to measure the wear of the wheels, readings are taken, a record is required for two different teeth and obtain an average.

Q: What are the chains for on a bulldozer?

A: Sealed and lubricated track chains are specifically designed for an increased pin and bushing retention. The track link incorporates a greater pin-to-link and bushing-to-link contact areas where additional link wear material increases the component life.

Q: How to maintenance for bulldozer lubricated chain parts

A: The New lubricated track chain of the bulldozer undercarriage spare parts should be properly tightened. It should not be too tight or too loose, which will damage the chain.
The dozer track chains assembly should be kept clean, avoid sun and rain, and avoid contact with acid-base solvents and other substances.
If the bulldozer track links assembly is severely worn, the dozer lubricated track chains assembly should be replaced to ensure a good effect, which can prolong its service life. And you need to replace the left and right two at the same time, otherwise the service life will be shortened.
Bulldozer track links lubricated are generally ring-shaped products made of metal. The wear of the dozer lubricated track chains due to collisions during operation is very serious, so it needs to be coated with some lubricating oil to ensure that the wear is reduced.
Under normal circumstances, check the lubrication of the track chains of dozer every week and refuel properly. Regularly lubricate the track chain of bulldozer with the recommended oil and at the recommended frequency.

Q: How can you recognize the wear patterns of tracks?

A: A track link is worn when there is so much play between the pin and the bushing that other undercarriage components start to wear. An increase in pitch creates more play between the pin and the bushing. This makes the inside of the bushing oval and the pin becomes thinner, because the it rubs against the bushing wall. This makes the track link longer.

Q: What are the benefits of using high-quality bulldozer track chains?

A: One of the most significant benefits of using high-quality bulldozer track chains is their durability.
Another benefit of superior bulldozer track chains is improved performance and efficiency.
In addition, high-quality bulldozer track chains provide greater safety for operators and workers on the job site.
Finally, high-quality bulldozer track chains offer great value for money.

Q: How is a bulldozer track chain assembled?

A: Step 1: Preparing the components
The first step is to ensure that all the components of the bulldozer track chain are in good condition. If any part is found to be damaged or worn out, it must be replaced before assembling the chain. All the components should also be cleaned thoroughly to remove dirt, grime, and other debris that could affect the performance of the chain.
Step 2: Linking the chains
After the components are prepared, interlocking the chains takes place, and this is a crucial step in the assembly process. The chains must be linked together so that they form a continuous loop. The pins and bushings must be inserted in the right manner and ensure that they are tight and secure.
Step 3: Linking the segments
Once the chains have been interlocked, linking the segments should follow. The segments are the angular parts of the bulldozer track chain, which power the machine's movement. The segments are secured onto the chains using pins and bushings. Afterward, the bolts, nuts, and washers are tightened thoroughly to ensure that the entire track chain is solid and secure.
Step 4: Finishing touches
The final step is to complete any additional step that might be required in the assembly process, such as adjusting the track chain tension, greasing the chain and other components, and checking for any loose links, pins, or bushings. These final steps ensure that the bulldozer track chain is ready for the heavy load it is expected to carry.

Q: What happens if a bulldozer track chain is too loose?

A: When the bulldozer track chain is too loose, the machine's performance is significantly affected. The track chain is no longer taut, and as a result, there is a considerable amount of slack that is created when the machine is moving. Consequently, the machine's movement becomes unstable, and the tracks start to slip. This can lead to a loss of traction and the bulldozer's ability to maneuver or push any load. A loose track chain also causes premature wear and tear of the bulldozer's undercarriage, track shoes, and other components.

Q: What happens if a bulldozer track chain is too tight?

A: First and foremost, a track chain that is too tight can put a tremendous amount of stress on the machine's gears, bearings, and other vital components.
Another issue that arises from a tight track chain is the loss of traction.
Lastly, a tight track chain can also increase the operator's fatigue and discomfort.

Q: What is the direction of the chain on an excavator?

A: The chain is in the machine's direction of travel if you can see an arrow on the links pointing in the direction of travel. Each link has a narrow side and a wide side. The wide side should be on the sprocket side and the narrow side on the front wheel.

We're professional track chain manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy high-grade track chain for sale here from our factory.

Excavator Track Chain, chain assembly, dozer track chains